Improvement in stove-grates



CHARLES R. HARVEY & JAMES H. FOOTE.

Improvement in Stove-Grates.

Patented May 2,1873.

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GHARLES'R, HARVEY AND JAMES H. FOOTE, OF NEW YORK, N. Y., ASSIGNORS TOCHARLES R. HARVEY.

Letters Patent No. 114,290, dated May 2, 1871.

IMPROVEMENT lN STOVE-GRATES.

' v The Schedule referred to in these Letters Patent and making part ofthe same.

To all whom it may concern Be it known that we, CHARLES R. HARVEY andJAMES H. Foo'rn, both of the city, county, aud'State or" New York, haveinvented certain new and useful Improvements in Grates for Furnaces,Stoves, 8m; and that the following, taken iuconnection with the drawing,is a full, clear, and exact description thereof.

In the drawing- Figure 1 is a top view or plan of the grate and ashpit.

Figure 2 is a vertical section through the same, showing the grate andits accessories'in elevation. v

This invention relates to that class of grates which both shake oroscillate and dump. Grates'of this class are usually fitted so that theymay be oscillated on a pin rising from a horizontal axis resting injournals at the bottom of the fire-pot or chamber which contains thecoals, and have at their periphery two lips which, when the grate is inplace, rest and slide upon ledges standing out from the periphery of thetop of the ashpit toward its center. These lips. hold the grate up solong as they overlie the ledges, but when the grate is oscillated sothat the lips passthe ends of the ledges the grate turns with its axisand dumps the contents of the fire-pot.

The grate is oscillated about a center by a handle or projectionsticking out. radially from it, such oscillation serving to shake outthe ashes, and by means of the same handle it can be placed in thedumping position.

There are two difficnlties which occur in the use of this commoncontrivance, viz: 1

First, that the grate is sometimes unintentionally oscillated whileshaking out the ashes so as to dump the contents of the fire-box, thusputting out the tire when it ought not to be.

Second, that the grate sometimes dumps completely over and jams the coalbetween it and the back wall of the ash-pit.

In the drawing an ash-pit is shown at a a, a grateaxle at b b, and anordinary shaking grate at c c, pivoted upon the axle at d.

To this axle is attached a rod,- m, like the tongue or pole of acarriage. The rod rests just under the top of the ash-pit, and, it isplain, prevents the grate from upset-ting or dumping too far and excepttoward the ash-pit door. This remedies the first difliculty aboveenumerate-d.

From the top of the ash-pit is hung a catch, 0, plvoted at f in suchwise that the rod m, when lifted, first shoves the hook to one side andis then caught by it. This catch holds the rod up unless purposelyuulatched, and the,rod then drops, (see dotted lines in fig. 2,) and thegrate tilts so as to dump out the coal.

'Weshape one end of the shaking-handle g, hereafter described, so thatit can be used as a hook to unlatch the rod and permit it to drop.

The grate may be shaken by a bar, g, which can be shoved into a socket,h, in the grate, and it is plain that it may be oscillated to any extentwithout any danger of unlatching and tilting the grate. The combinationof the latch with the rod, therefore, cures the second difiiculty.

Any kind of catch or button may be used to hold up the rod so long asthere is something which will hold the rod up, and which can be-removedso as to let it drop.

The. shaking-bar or handle is to be removed when the grate is tilted,and we prefer to let it enter the ash-pit, when it is desired to shakethe grate, through an aperture, it, closed at times by sliding doors p,which regulate the draught.

It is hardly necessary to say that there are no lips on the grate and noledges projecting inward from the bottorn of the fire-pot.

We sometimes intend to use the rod in attached to the axle, even whenthe grate has lips and is free t9 dump when they slide over ledges.

We claim as of our own invention- 1. In co1nbiuation,\vitl1 a grate,free to oscillate upon a center, an axle supporting the grate, and a rodattached to and projecting from the axis, substantially as described,the combination being and acting substantially as set forth. I 2. Incombination with a grate, an axle, and a rod projecting therefrom, acatch or latch, the combination being and operating substantially asherein described.

CHARLES R. HARVEY. JAMES H. FOOTE.

\Vitnesses:

THOMAS Pnunnu, W. NYE HARVEY.

